Transformations
Translation 1 units left and 3 units up.
(x - 1, y + 3)
What is the measurement for one angle of an equilateral triangle?
60 degrees.
What is the equation for the circumference of a circle?
C = πd or C = 2πr
What segment relationship uses AB x BC = DB x BF to find the length of its segments.
Intersecting Chords
What does (x, -y) represent?
Reflection across the x-axis
What is the Pythagorean Theorem equation?
a^2 + b^2 = c^2
How many times does a tangent line touch a circle?
One time.
How do you find the exterior angle in exterior angle theorem?
1/2(angle A - angle B)
What is the only transformation that makes a similar shape to the pre-image?
Dilations
2 times.
A part of a circle, its area is calculated using this equation: angle/360 x πr^2
Sector
What lines can the exterior angle theorem be made of?
Tangent and secant
What is another way to say 90 degrees counterclockwise?
270 degrees clockwise
What type of triangle has two sides of equal length?
Isosceles triangle.
True or false: The central angle is 2 times greater than an inscribed angle.
True
What type of angle is form when two secant lines intersect to create an obtuse angle?
Interior angle
What represents (1/2x - 4, -1/2y + 5)
A dilation with a scale of 1/2, a reflection across the x-axis, and a transformation 4 left 5 up.
If triangle ABC has angle measures of 120, 30, and 30, what type of triangle is it?
Obtuse triangle.
What are the degrees of an arc if its inscribed angle is 57 degrees?
114 degrees
Circle I has two chords labeled AC and DF (They are both intersecting point B). If AB = 12, BC = 6, DB = 7, what is the length of segment BF rounded to the nearest tenth?
BF = 10.3